spear300.c
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/*
* arch/arm/mach-spear3xx/spear300.c
*
* SPEAr300 machine source file
*
* Copyright (C) 2009-2012 ST Microelectronics
* Viresh Kumar <viresh.linux@gmail.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#define pr_fmt(fmt) "SPEAr300: " fmt
#include <linux/amba/pl08x.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include "generic.h"
#include <mach/spear.h>
/* DMAC platform data's slave info */
struct pl08x_channel_data spear300_dma_info[] = {
{
.bus_id = "uart0_rx",
.min_signal = 2,
.max_signal = 2,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "uart0_tx",
.min_signal = 3,
.max_signal = 3,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ssp0_rx",
.min_signal = 8,
.max_signal = 8,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ssp0_tx",
.min_signal = 9,
.max_signal = 9,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "i2c_rx",
.min_signal = 10,
.max_signal = 10,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "i2c_tx",
.min_signal = 11,
.max_signal = 11,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "irda",
.min_signal = 12,
.max_signal = 12,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "adc",
.min_signal = 13,
.max_signal = 13,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "to_jpeg",
.min_signal = 14,
.max_signal = 14,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "from_jpeg",
.min_signal = 15,
.max_signal = 15,
.muxval = 0,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras0_rx",
.min_signal = 0,
.max_signal = 0,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras0_tx",
.min_signal = 1,
.max_signal = 1,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras1_rx",
.min_signal = 2,
.max_signal = 2,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras1_tx",
.min_signal = 3,
.max_signal = 3,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras2_rx",
.min_signal = 4,
.max_signal = 4,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras2_tx",
.min_signal = 5,
.max_signal = 5,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras3_rx",
.min_signal = 6,
.max_signal = 6,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras3_tx",
.min_signal = 7,
.max_signal = 7,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras4_rx",
.min_signal = 8,
.max_signal = 8,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras4_tx",
.min_signal = 9,
.max_signal = 9,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras5_rx",
.min_signal = 10,
.max_signal = 10,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras5_tx",
.min_signal = 11,
.max_signal = 11,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras6_rx",
.min_signal = 12,
.max_signal = 12,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras6_tx",
.min_signal = 13,
.max_signal = 13,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras7_rx",
.min_signal = 14,
.max_signal = 14,
.muxval = 1,
.periph_buses = PL08X_AHB1,
}, {
.bus_id = "ras7_tx",
.min_signal = 15,
.max_signal = 15,
.muxval = 1,
.periph_buses = PL08X_AHB1,
},
};
/* Add SPEAr300 auxdata to pass platform data */
static struct of_dev_auxdata spear300_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
&pl022_plat_data),
OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
&pl080_plat_data),
{}
};
static void __init spear300_dt_init(void)
{
pl080_plat_data.slave_channels = spear300_dma_info;
pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info);
of_platform_populate(NULL, of_default_bus_match_table,
spear300_auxdata_lookup, NULL);
}
static const char * const spear300_dt_board_compat[] = {
"st,spear300",
"st,spear300-evb",
NULL,
};
static void __init spear300_map_io(void)
{
spear3xx_map_io();
}
DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree")
.map_io = spear300_map_io,
.init_time = spear3xx_timer_init,
.init_machine = spear300_dt_init,
.restart = spear_restart,
.dt_compat = spear300_dt_board_compat,
MACHINE_END